DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES - Amounts Recorded on Balance Sheet Related to Fixed-to-Floating Interest Rate Swaps (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Interest rate swap
Derivative [Line Items]
Carrying amount of the hedged assets (liabilities)	$ (2,413)	$ (2,413)
Long-term debt
Derivative [Line Items]
Discontinued hedge, cumulative adjustment	70	33
Long-term debt \| Interest rate swap
Derivative [Line Items]
Cumulative amount of fair value hedging adjustment included in the carrying amount of the hedged asset (liabilities)	$ (70)	$ (84)

Hedged Asset, Active and Discontinued Fair Value Hedge, Cumulative Increase (Decrease)

No definition available.

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Balance Type:	debit
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Amount of cumulative increase (decrease) in fair value of hedged liability in fair value hedge, attributable to hedged risk, remaining after discontinued hedge.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4EE
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=125515794&loc=SL109999712-113959

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of liability hedged in fair value hedging relationship.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4EE
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=125515794&loc=SL109999712-113959

+ Details

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Balance Type:	credit
Period Type:	instant

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- Details

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